¶ DNS Blocking
¶ Overview
Navigate to Config → Networking → DNS Blocking to configure DNS blocking for customers whose services are suspended.
It ensures that blocked customers are redirected to a custom landing page where they can see their suspension reason and access payment options.
¶ DNS server settings
This section allows you to enable or disable DNS-based redirection for blocked customers:
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Enable DNS blocking - toggle this option to activate or deactivate DNS redirection. When enabled, DNS requests from blocked customers are redirected to a custom landing page.
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Allow list (networks) - enter a list of IP networks that should be excluded from DNS blocking.
Each network must be entered on a new line.
Use only your exact networks and avoid public networks to mitigate the risk of DDoS attacks.
- Load from IPAM - click this button to automatically populate the allow list using entries from the IP Address Management (IPAM) system.
¶ DNS tools
- Restart DNS - use this button to manually restart the DNS service and apply recent changes.
¶ Landing page settings
This section defines the appearance and messaging of the redirection page shown to blocked customers:
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Logo URL - link to the image displayed at the top of the landing page.
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Title - the main heading displayed on the landing page (e.g., “Service Blocked”).
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Text - the main message shown to customers, such as the reason for the block and next steps.
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Button - the label for the call-to-action button (e.g., “Pay Now”).
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Additional message - optional text shown after the main message, e.g., instructions after payment.
Then click the Save button to apply the changes.
¶ Hosts
This section manages static DNS records that should remain accessible even for blocked customers (e.g., payment gateways).
Click the + button to add a new hostname and IP address. These records will bypass DNS blocking:
Edit or delete entries using the action buttons in the table:
